Device for converting motion.



PATENT'ED JAN. 15,1%?.1'`

No. 841,445. f

P1. H'RIUHARDS. DEVIGE PORGONVERTING MOTION.

APPLICATION FILED APR.8. 1902.

3' SHEETS--SHEBT l.

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Nb. 841,445. l PATENTBD JAN. 15, 1907.

1". H. RICHARDS.

DEVICE FOR CONVERTINGV MOTION. AH'LIGATION 111.1111 111211.11. 1902.

3 SHEETS-SHEET 2.

1n: NoRRrs PzrErfs co., wAsHmcraN, n. c.

' 110.841,445. l PATBNTBD JAN.15, 1907*. l P. n.,RIGHARDsl l I DEVICEPQR- GONVBRTING MOTION.

. -APVPLI0-ATION FILED APB.. B. 1902.

3 SHEETS-SHEET 3.

UNITED s'rATns,

PATENT OFFICE.

DEVICE FOR OONVERTING MOTION.

No. allinea-i Specification of Letters Patent. i Application led April8, 1902. Serial No. 101,889.

Patented Jan. 15, 1907.

effecting the conversion of motion; and it relates more especially tothe design and dehas tails of construction of a device or ap liance forconverting the uniform motion ofp a uniformlyrunning driving-shaft intothe motion of a driven shaft rotating with a varying velocity.

It is an object of the present invention to provide a simple, compact,and effective organization of elements susceptible when interposedbetween the shafts aforesaid of accomplishing an alteration of motionsuch as een lreferred to.

In its broader aspect of organization and as respects the kinematicrelation of its various component parts and devices a mechanism orappliance embodying the present invention and such as is illustrated inthe drawings accompanying thepresent specification does not form thesubject-matter of the present application, since the same is shown,described, and claimed in a separate application filed by me on April19, 1900, Seria No. 13,470.

In the drawings attached hereto, Figure 1 is mainly'a centrallongitudinal section of a device for converting motion and which isdesigned and constructed in accordance with my present improvements.Fig. 2 is a plan view thereof, a part of the frame being broken awaythebetter to show parts lying within.

Fig. 3 is an end elevation looking from the left in Fig. 2, and Fig. 4is a cross-section on the plane of the line 4 4 in Fig. 2 looking in thedirection of the arrow adjacent to that line. i

Similar characters of reference designate corresponding parts in allfigures.

In a general way the elements comprised in the resent device formodifying the transmittedl) motion and for establishing the character ofthe resilient motion of the driven shaft as compared with that of thedrivingshaft are a driving-pinion, a driven gear secured to the drivenshaft, an oscillatory ini termediate gear for transmitting motion fromthe driving-pinion to the said driven gear, and appropriatecain-actuators for oscillating the said intermediate gear while incontinuous engagement with the pinion and the said driven gear.

In the particular mode shown in the drawings of supporting the variousoperative parts of the device they are illustrated as carried upon abase-plate 2; Obviously such supporting or base late may forni aseparate element intended) for the sole support of the device, or thesame may constitute a portion of the framing of a machine with which thepresent device is combined.

Such support, whatever be its nature, is provided with suitable meansfor maintaining the journal-bearings of the driving and driven shafts inproper relative position.

The latter of these two shafts is directly supported by an upright ormember 2', while a proper support for the vformer shaft is afforded byan upright or member 3. This member 3 has at least superficialdimensions sufficient to permit an opening to be formed therein largeenough to` enable the entire mechanism to be bodily inserted in placeafter having been assembled or similarly withdrawn from position on theexterior face of this member 3 that is on that side thereof opposite themember 2, and over the opening therein is located a cap or cover plate5, whose radially-extending edge is secured to the upright by propermeans, such as screws 6. In the form shown this cover-plate isimperforate except where an opening is provided therein for the passageof the drivingshaft 10, which in this instance is rotatable in a bearingin the nature of a bushing 9, secured within the journal-opening in thecoverplate. The driving-sliaft is here provided with a driving-pulley 12a nut 11 being shown for the purpose of holding, in coperation with anopposed. shoulder, the pulley in position on the shaft.

" On the opposite side of the cover-plate there is a driving-gear 14,which is attached to the driving-shaft and meshes with a second gear 19,affixed to a shaft 20, at whose opposite end there is carried adriving-pinion 22.

It may sometimes be desirable to have the gears 14 and 19 run in oil. Imay therefore, and. this is the form and construction shown, give to thecover-plate 5 a shape such that a IOO pocket is formed therein, theclosure on the opposite side of the pocket being made by a plate `15,which is preferably secured to the aforesaid cover-plate '5-as, forinstance, by screws 17-thus permitting it to be removed with thecover-plate when the latter is unfastened and taken off. This plate 15is also utilized for supporting the bearing of the shaft 20, whichbearing is shown formed in a bushing 21, having. a length substantiallyequal to vthe distance between the adjacent faces of the gear 19 andpinion 22 and the bushing being held xedly in an opening in the plate15.

The driven shaft, already mentioned and designated by 41 on the figuresof the drawings, is disposed in its bearings (one ofwhich, as alreadymentioned, is supported by the member 2') in axial alinement with theaforesaid shaft 20. The driven shaft terminates close to the adjacentend of the shaft 20, and in order to steady the end of the latter shaftit may be provided with an extension 20', fitting into and adapted torotate in a journal-recess in the end of the driven shaft.

A'lfixed to the driven shaft 41 is an internal gear, designated in ageneral way by B and comprising, for facility and cheapness ofconstruction, a web 42, made up in the form here shown of a series ofarms 42, whose outer ends are connected by a circular rim 42, andfurther comprising an internallytoothed shell 43, connected by meanssuch as screws 44 to the rim 42". In order to position the shaft 41endwise in the journal-opening in the member 2', and hence place theinternal gear in correct relation to the drivingpinion 22, the web 42 isextended to the left (see Fig. 1) in the form of a sleeve 40, throughWhose bore the shaft 22 extends and which exteriorly is fitted to rotatein the journalopening of the member 2. Suitable means are provided forholding the web of the internal gear snugly up against the end face ofthe bearing in this member, the means here shown consisting of a nut 4W,which engages with a screw-thread on the sleeve 40.

l The toothed portion of the internal gear B is disposed in such'relation to the drivingpinion 22 as to permit motion. to be transmittedfrom the latter to the former by means of an intermediate gear 32, whoseaxis, however, does not remain fixed relatively to the fixed portions ofthe device during the operation of the device. The construction is suchas to cause this axis of rotation of the intermediate or transmittinggear to be shifted to and fro in the arc of a circle whose centercoincides with the axes of the shafts 20 and 41, thereby effecting asimilar rocking movement of the intermediate gear back and forth in theannular space between the driving-pinion and the internal gear.

For this purpose the intermediate gear is mounted upon a rocker,designated in a general way by C and having a hub portion c throughwhose bore the aforesaid bushing 21 extends, this hub portion being ofsufficlent axial length to properly position the gear 32 relatively tothe pinion 22 and internal gear B. In an arm 27 of this rocker issuitably journaled the shaft 30 of the intermediate gear, which shaft inthe construction herein shown has a nut 31 at its outer end forpreventing any undesirable longitudinal movement thereof.

Referring now to the means for effecting the oscillation of the rocker,this means is herein the form of a pair of cam-actuators 24 and 25,respectively, which in point of concurrent operation functionalternately as actuators and as members for insuring the reliableoperation of that cam serving as an actuator for the time being. Thesecams are in the present construction made integral with a connecting-hub24', and they are driven fromfthe driving-shaft 10. For this purposethis J'shaft extends through the bore of a bushing 23, fixed in anopening of the aforesaid closure-plate 15, and carries at its outer enda disk 13, through whose peripheral portion pass screws 13', by whichthe camactuators are secured'to the disk, and hence to the shaft. Thehub 24 of the cam-actuators is bored to t the outer cylindrical surfaceof the bushing 23, and hence during the rotation of the driving-shaftthe cams rotate about this bushing. l

Bearing against the cam-actuator 24 is a cam-roll 37 and against thecam-actuator 25 is a cam-roll 33. These cam-rolls are mounted onrespective arms 28 and 29, which extend from the hub portion of therocker toward opposite sides of the driving-shaft 10.

ICO

In the particular construction herein shown each cam-roll is mountedupon a corresponding shouldered stud 50, which after the camroll isslipped over it is fastened, as by a nut 51, in an opening at the outerend of its proper arm, the roller being held from undesirable movementlengthwise of the stud by a flange 52, which fits into a recess in theradia face of the roll.

These cams -are complemental to each other-that is to say, they are soproportioned and related to each other that while one is Working and thedistance between the axis of about which it rotates and the point ofcontact with the actuated roll is increasing the corresponding distancewithrespect to the other set is correspondingly decreasingi n thuspreserving and insuring contact wit the cam then functioning as anactuator.

The character as respects the speed, extent, and duration of theoscillatory movement of the rocker may be variously modified by properlymodifying the contour of the cam actuators and the character of theresultant motion of the driven shaft, assuming a uniform rotation of thedriving-shaft be made, as desired, within the limits of the capacity ofthe device, vof course.

` `The invention is, furthermore, not limited in its scope to anyparticular proportion'of d the gears or other parts embraced in theconstruction.

` i A design and construction such as shown and'herembefore described 1speculiarly compact, economical in the number of parts required, andcapable, of being readily assembledl and disassembled asa completeddevice, since the entire mechanism, with the eX- ception of the drivenshaft and the internal gear, may be withdrawn'intact upon removing thecover-platet t Having describedmy invention, I claiml.. The combinationwith a driving and a i driven shaft, `of a removable part by which oneof said shafts is carried, and a train of gears mounted in and incasedby said removable part, the removal of said part serving to disconnectsaid gears and shafts from `plate by both of which walls one of saidoperative connection.4 d 2. The combination with a driving and a drivenshaft, of a double-walled removable shafts is carried and the chamberbetween which constitutes an oil-bath for gears which may be mountedtherein, and a `train of gears mounted between said walls, the re- 1moval of said plate serving to disconnect said gears and shafts fromoperative connec-` tion with the other parts of the mechanism.

3. The combination with a driving and a driven shaftoperatively'connected by intermeshing gears, of said intermediate gears,a

removable part by which the driving-shaft and` gearsare carried and theremoval of whichpath serves to disconnect the two shafts from operativeconnection, and incaslng instrumentahtles for the gears carried by theremovable part.` 4; The combination with a driving and a driven shaft,of a removable plate by which i the said driving-shaft iscarried, a`train of gears carried also by said plate, the removal of said plateserving to disconnect the two shafts from operative connection, andincasing means for the gears carried by said plate.` 5. The combinationwith a driving and a i driven shaft, of an intermediate train ofplanetary gears for transmitting power from one `to the other of saidshafts, and a removablev part by which. one of said shafts and a portion`of said planetary gears are carried and .the removal of whichpartserves to disconnectthe supported shafts, and a portion of saidplanetary gears from operative connection with the other shaft, andprotecting means for the gears carried by said plate.

i 6. The combination with a driving and a driven shaft, of anintermediate train of planetary gears for transmitting power from one tothe other of saidshafts, and a removable `plate by which one ofsaidshafts and a portion of said planetary gears are carried and the removalof which part serves to disconnect the supported shafts and a portion ofsaid planetary gears from operative'connection with the other shaft, anda cover for the gears carried by the plate.

- 7. The combination with a driving and a driven shaft, of anintermediate train of planetary gears for transmitting motion from oneto the other, a member bywhich said drivingshaft and a portion of saidplanetary gears are supported, and a plate carrying the said ldriving-shaft and said planetary gears and which is removably secured tosaid member and over an opening therein, and by` its re-` moval servingto disconnect the supported shaft and the said train from operative con-`opposite side of said` gear.

` 9. The combination witha driving and a driven shaft, of a gear securedto said driving-shaft, mechanism intermediate said gear i and the othershaft and embodyingan intermediate shaft, a gear mounted on a portion ofsaid intermediate shaft and meshing with said gear secured to thedriving-shaft, a driving-pinion mounted on another portion of saidintermediate shaft, a member by which said .driving-shaft andintermediate mechanism are supported, a plate removably secured to saidmember and over an opening therein and having a journal-opening for theportion of the driving-shaft on one side of IOO said gear, and anauxiliary plate secured to i the first-mentioned plate and having aournal-opening for the portion of the drivingshaft en the opposite sideof the gear and also a journal-opening for said intermediate shaft.

10. The combination with a driving and a ,A

driven shaft, of a gear secured to said driving-shaft, mechanismintermediate said gear on the other shaft and embodying an intermediateshaft, a gearat the end ofsaid interi mediate shaft and meshing withsaid gear secured to the driving-shaft, a driving-,pinion at theopposite end of saidintermediate shaft, a member by which saiddriving-shaft and intermediate mechanism are supported, v,a plateremovably secured to said member and over an opening therein, and havinga journal-opening for the portion of the drivingshaft on one side ofsaid gear, and a plate secured to said first-mentioned plate and havinga journal-opening for the portion of the driving-shaft on the oppositeside of the gear and also a j ournal-opening for said intermediateshaft.

11. The combination in mechanism for transmitting and varying motion, ofa driving-shaft having a flange, a gear mounted on said shaft, a trainof gears operatively connected to said gear, a cam carried by saidflange, and mechanism operated by said cam anddesigned to vary thevelocity.

12. The combination in mechanism for transmitting and varying motion, ofa driving-shaft having a fiange at one end and combined with a gearsecured to the shaft, an actuator secured to said flange, a member bywhich such shaft is supported, a plate removably secured to said memberand over an opening therein and having a ,journal-opening for theportion of said shaft on one side of said gear and speed-changingmechanism operated by said actuator.

13. The combination with a driving and a driven shaft of a removablepart by which one of said shafts is carried and the removal of whichpart serves to disconnect the two shafts from operative connection, atrain of planetary gears mounted on and carried by said removable partand an auxiliary plate secured to the removable part 14. The combinationwith a driving and a driven shaft, one whereof is provided with a angeand gear, of said gear, a removable part by which one of said shafts iscarried and which removable part protects said gear and the removal ofwhich part serves to disconnect the shafts from operative connection,and an auxiliary plate secured to said removable part and having a journal-opening for the encircling shaft between said cam and gear.

15. The combination with a driving-shaft Lof a member by which saidshaft is supported, a gear secured to said shaft and inclosed by saidmember, a plate removably secured to said member and disposed on oneside of the gear, an auxiliary plate secured to the member and disposedon the opposite side of the gear, and bushings secured in said plate andmember and extending therebeyond and in which said shaft is journaled.

16. The combination with a driving-shaft,

of a framing member, a gear secured to the shaft, a plate removablysecured to said member, an auxiliary plate secured to thefirst-mentioned plate and with it incasing Said gear, saidvplates having`openings and bushings secured in said openings and extending beyond therespective plates, and in which bushings said shaft is journaled, adriving-pulley secured to one end of the'shaft and an actuator securedto the opposite end, and an intermediate shaft, a gear thereon andhoused between said plates, and a shaft and intermediate gear-traindriven and condriven shaft, an intermediate shaft, gearing connectingsaid shafts, and means controlled by said cam for shifting one of'saidgears for vlarying the motion imparted to the driven s iaft.

18. The combination with a driving-shaft, of a member by which saidshaft is supported, a train of gears, one gear of which is secured tothe shaft, a plate removably secured to the member, an auxiliary platesecured to the first-mentioned plate, 'said plates inclosing the trainof gears, bushings secured in openings in saidv plates and extendingbeyond the respective plates and in a set of which bushings said shaftis journaled, a driving-pulley fast on one end of the shaft and anactuator secured on the opposite end and j ournaled on one of the saidbushings, a shaft for the other of said gears mounted in another of saidbushings, and a driven shaft controlled by the combined action of saidlatter shaft and the actuator.

19. The combination with a driving-shaft, of a framing member, a trainof gears, one of which is secured to the sh aft, an actuator IOC for oneof said gears, an intermediate shaft to which another of said gears issecured, a

driven shaft driven thereby, a late removably secured tothe said mem er,an auxiliary plate secured to the first-mentioned plate, both of saidplates incasing the said gears, a bushing secured in an opening in oneof said plates and in which bushing one of said shafts is journaled, 'adriving-pulley secured to the driving-shaft and a cam also carriedthereby and coperative with said actuator for modifying the action ofthe train of gears upon the driven shaft.

20. The combination with a driving-shaft of a member by which said shaftis supported, a gear secured to the shaft, a plate removably secured tothe member, an auxiliary plate secured to the first-mentioned plate,both plates incasing the gear and a series ofv IIO other gearsalsovcarried by said first-mem tioned plate and adapted to be removablethereby, bushings secured in openings and extending beyond therespective plates and in which said shaft and a driven shaft arejournaled, a driving-pulley secured to one end of the drivingeshaftv1and an actuator embodying a pair of alternating reciprocal actuating andretarding cams secured to the opposite ends, and means controlled bysaid actuators` to modify the drive imparted to the driven shaft.

21. The combination with a driving and a driven shaft, of anintermediate transmissiontrain comprising a Web secured to the drivenshaft and carrying an internally-toothed shell, cams fast With saiddriving-shaft, an intermediate shaft, a pinion on the intermediateshaft, a gear fast on the intermediate shaft, a gear fast With thedriving-shaft and in mesh therewith, a rocker actuated by ysaid cams,and a pinion carried by said rocker and meshing With said toothed shelland With the pinion on said intermediate shaft.

22. The combination With a driving, a driven shaft, and an intermediatedriven shaft, cfa member in which the driving-shaft is journaled and anintermediate transmission-train comprising a web secured to the drivenshaft and having a lateral sleeve-like extension reaching to theopposite side of said member, and in which the driven shaft is carried,a toothed shell secured to said Web, an

` actuator secured to said driving-shaft, a rocking member, a pinioncarried thereby and having operative connection With said toothed shell,said rocking member being operated by said cam, said member beingadapted to inclose and carry a portion of the intermediatetransmission-train.

23. The combination With a driving and a driven shaft of a member byWhich the driving-shaft is supported, a plate removably secured to saidmember and having a journalo ening for the driving-shaft, an auxiliary pate secured to the first-mentioned plate, a gear secured to thedriving-shaft, a gear meshing therewith and Whose shaft is disposed inalinement With the said driven shaft, a driving-pinion secured to theshaft to which said second gear is secured, a gear secured to the drivenshaft, an oscillatory gear for transmitting motion from said pinion tothe gear secured to the driven shaft, a rockerfor oscillating saidoscillatory gear and an actuator secured to said driving-shaft foractuating the rocker. i

24. The combination With a driving, a driven and an intermediate shaft,of a member by Which said driving and intermediate shafts are supported,a plate removably secured to said member and having a ournalopening lforthe driving-shaft, an auxiliary plate secured to the first-mentionedplate and having journal-openings for the driving and the intermediateshafts g, bushings secured in said j ournal-openings in which saidshafts rotate, gearing for transmitting motion from the driving to theintermediate shaft, a pinion secured to the intermediate shaft, aninternal gear secured to the driven shaft, an oscillatory intermediategear meshing With said pinion and said internal gear, a rocker on whichsaid intermediate gear is carried and which Works on the bushingsurrounding the intermediate shaft and a pair of actuators for effectingthe oscillatory movement. of said rocker.

25. The combination of a driving and a driven shaft, a gear on each ofsaid shafts, a removable part by Which one of these shafts is carried,and a train of gears in mesh With said driving and driven gears and oneof which is together with lthe driving gear mounted in and incased bysaid removable art. p FRANCIS H. RICHARDS.

Witnesses: y

FRED J. DOLE, JOHN O. SEIFERT.

